Based on the existing answers, it appears that Metamask or Coinbase wallet are the most popular wallets needed in the DEFI kingdom. Both of these wallets are secure and easy to use, making them ideal for anyone looking to get involved in the DEFI kingdom. Additionally, both wallets offer a variety of features, such as the ability to easily store and manage cryptocurrencies, track your transactions, and make payments. With these features, you can ensure that your funds are safe and secure while also having the convenience of being able to easily manage your finances.